Darkling- Blinds Soldiers

The Darkling slid from his mount and threw his hands wide, then brought them together with a resounding boom. Skeins of darkness shot from his clasped hands, snaking through the glen, finding the Fjerdan assassins, then slithering up their bodies to swathe their faces in seething shadow. They screamed. Some dropped their swords; others waved them blindly.

I watched in mingled awe and horror as the Ravkan fighters seized the advantage, cutting down the blinded, helpless men with ease.

Shadow and Bone Chapter 4